baber/WOPTO huggingface dataset:
Patent GB-1043350-A (GB)
Title: Stabilization of methylchloroform
IPC: C11D7/50
Filed: 1965-01-15
Abstract: Methyl chloroform is stabilized by adding a three-component mixture of (a) a 1,3-dioxolane, (b) a nitroalkane, and (c) an organic epoxide. Typical examples of these materials are:-(a) 2 - ethyl - 1,3 -dioxalane, 2 - chloro - 4 - methyl - 1,3 - dioxolane and 2 - nitromethyl - 1,3-dioxolane; (b) nitromethane, b -nitropropane and 2-chloronitro-ethane; and (c) butylene oxide, epichlorohydrin, cyclohexene oxide, styrene oxide and cyclopentadiene diepoxide; others of each class also being specified.  A wide variety of optional additives may also be present, and these are extensively exemplified within the following general classes:-mono- and diketones, mono- and poly-alcohols, nitriles, alkyl nitrates, dialkoxyalkanes, cyclic ethers, and aromatic hydrocarbons, which may be substituted, e.g. by F or Cl.
Patent GB-1108437-A (GB)
Title: Alarm lock
IPC: E05B45/06
Filed: 1966-01-14
Abstract: 1,108,437. Intruder alarm. GENERAL ALARM CORPORATION. 14 Jan., 1966 [28 April, 1965], No. 1837/66. Heading G4N. [Also in Division E2] Movement between two relatively movable members releases a magnetically held switch to actuate an alarm. The lock of a door, Fig. 2, includes a magnet 39 which is held upright by a co-operating member of magnetic material in the lock keeper 17 when the door is shut. Opening of the door by an unauthorized person removes the magnetic force holding the magnet upright, and allows it to tilt closing a mercury switch 36. Authorized opening of the door by turning a key in lock 29 raises a plunger 40 to retain the magnet 39 in the upright position, thus inhibiting the alarm. The alarm may be a horn or siren 14 mounted in the door or the unit may energize a transmitter to actuate a remote alarm. In modifications, Figs. 12, 17 (not shown), the member in the lock keep is in the form of a circular magnet arranged to normally attract the magnet 39. An attempt to force the door lock causes the magnet to rotate until it is in a position to repel the magnet 39 and actuate the alarm without the door being opened. Details of the lock mechanism are also described (see Division E2).
Patent GB-283939-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G13/02
Filed: 1928-01-20
Abstract: 283,939. Elektrizitõts Akt.-Ges. Hydrawerk. Jan. 20, 1927, [Convention date]. Condensers of the wound type which are exposed to vibration and high temperature, as for example condensers for ignition apparatus, have the edges of the leaves projecting beyond the insulating layers connected with metal contact plates by fusion. The insulating material which becomes softened, is thereby prevented from getting between the leaves and the contact plates and putting the condenser out of action. The edges of the leaves b, b<1> are fused, as by soldering, to the contacts discs k, k<1>, which are given a coating of easily fusible metal, these discs being in turn fused to the winding carrier d and housing n at t, s, respectively. An insulating cylinder i, forming an extension of the carrier d, prevents contact between the latter and the housing, and an insulating cylinder g separates the winding from the housing. The carrier d on which the start of the leaf b is placed, is rigidly connected to an insulating plate a, and the holding screw r or nuts m can be used as a terminal. The space v is filled with insulating material during manufacture.
Patent GB-373614-A (GB)
Title: Improvements in and relating to prepayment mechanism for meters
IPC: G07F15/06
Filed: 1931-01-21
Abstract: 373,614. Prepayment mechanism for meters. FERRANTI, Ltd., BATT, F. H., and WHITEHEAD, M., Hollinwood, Lancashire. Jan. 21,1931, No. 2011. [Class 27.] Prepaying basic charges.-In prepayment mechanism for meters in which a controlling member is moved in one direction by coin operation and in the other both by a consumption meter and bv a torque-producing means independent of the consumption, the angular motion derived from the torque-producing device is limited positively in correspondence with the amount of fixed charge and the speed of said device is varied automatically with this amount so that the time during which the fixed charge is collected is substantially constant. The invention is described as applied to the prepayment electricity meter described in Specification 369,959. The subtractive sunwheel of the switch tripping differential is operated from the planet carrier spindle 12a, Fig. 3, of a second differential gear 10, 11, 12, the sun wheel 10 being operated through a gear wheel 80 by the consumption meter and the sun wheel 11 by Ferraris motor 20 through gearing 21 .. 28. A cam 35, Fig. 4, with an indent 35a for controlling a switch 36, 37 in the circuit of the Ferraris motor 20, is connected to the wheel 11, this cam 35 being set to a position corresponding to the amount of the basic charge and rotated through gearing 21, 29, 81, 30 .. 34 until the indent 35a allows the switch 36, 37 to open and stop the motor 20. The speed of the motor disc 43 is controlled by a brake magnet 42 pivoted at 42a and moved against the action of a spring 53 by vertically slidable guided member 54 having a pin 82 which is acted on by a cam 41. The cam 41 is rotated to position the magnet 42 by a key spindle 46 operating through gear wheels 47, 48, a pawl 51 allowing rotation of the wheel 47 in one direction only. A pin 44 on the cam 41 engages during resetting only with a pin 45 on the switch cam 35 so that operation of the spindle 46 by a key sets the cam 35 to the amount of the basic charge and at the same time adjusts the magnet 42 in accordance with that amount. In order that the main circuit switch of the prepayment meter may be maintained in the open position owing to arrears in fixed charge, the tripping switch member is formed as a sector-shaped member 60, Fig. 5 (not shown). Specification 346,538 is referred to.
Patent GB-310091-A (GB)
Title: Improved machine for filling bags and the like with pulverous material
IPC: B65B1/18
Filed: 1928-01-21
Abstract: 310,091. Middelboe, K. Jan. 21, 1928. Filling powdered material into bags.- A bag 4 to be filled is disposed on a supply pipe 3 carried on a double armed lever 5, 6, the pivot of which is supported from a vertical rod 8 of a weighing machine. In use, the material flows from the opening 2 of a hopper 1 until a slide 2<1> is closed by the action of the weighing machine. A lever 14 is then caused to raise so that a tappet 15 strikes the right-hand bottom corner of the bag and rotates the bag, tube 3 and lever 5, 6 in an anticlockwise direction. This causes a pawl 10, which has been holding the bag on the pipe, to be engaged and lifted by a stop 11 on the arm 8, and the bag is released and slides off the pipe. In a modified arrangement., the pipe and the centre of gravity of the filled bag may be so disposed that the system 3, 5, 6 will be rotated to discharge the bag without the agency of a separate force.
Patent GB-895495-A (GB)
Title: Amino-acetamidoximes and their preparation
Inventor: BENN FREDERICK ROGER
IPC: C07C259/14
Filed: 1960-01-20
Abstract: The invention comprises compounds of general formula <FORM:0895495/IV (b)/1> wherein R1 represents an aralkyl radical and R2 represents an aryl or p-substituted aryl radical, and their acid addition and hydrated acid addition salts: also process for their preparation, either (1) reacting hydroxylamine or a salt thereof with a compound of general formula <FORM:0895495/IV (b)/2> wherein R1 R2 are as above and R3 represents <FORM:0895495/IV (b)/3> wherein R4 represents an alkyl radical of 1-4 carbon atoms and X represents oxygen or sulphur, optionally with an acid binding agent, or (2) reacting a compound R1Y wherein R1 is as above and Y represents chlorine, bromine or iodine, with an acid addition salt of a compound of general formula <FORM:0895495/IV (b)/4> wherein R2 is as above. N-benzyl-N-phenylamino-thioacetamide is prepared by the action of H2S on the corresponding acetonitrile.  N-p-Methoxyphenyl- and N-p-tolyl-N-benzyl-aminoacetonitriles are prepared by the action of benzyl chloride on the corresponding N-mono-substituted compounds. Specification 699,644 is referred to.ALSO:Pharmaceutical compositions comprise, in association with a pharmaceutically acceptable diluent or carrier, amino-acetamidoximes of general formula <FORM:0895495/VI/1> (wherein R1 is aralkyl, and R2 is aryl or p-subst ituted aryl) or their acid addition salts, which compounds are antihistaminics.  Oral (tablets, capsules, elixirs), parenteral (solutions, which may contain bacteriostats), and topical (creams, ointments, nasal sprays and lotions) administration is mentioned. Preparations with other active agents e.g. naphajoline, phenylephrine, pholsidine, chlorbutol, chlorocresol, calamine and menthol are described.  Specification 699,644 is referred to.
Patent GB-783241-A (GB)
Title: An extinguishing chamber for an oil-blast electric circuit breaker
IPC: H01H33/96
Filed: 1956-01-23
Abstract: 783,241. Oil-blast switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Jan. 23, 1956 [Feb. 11, 1955], No. 2131/56. Class 38 (5). In the extinguishing chamber of an oil-blast switch, oil is delivered under pressure against the arc through an annular slot 12 surrounding the arc channel, the slot being formed between the opposed end surfaces of a stationary contact 4 and a tubular insulating member 14 through which the moving contact 15 passes. When the arc is drawn, the pressure produced acts on a differential piston 8 which moves upwardly against the pressure of a spring 9 and forces oil from the space 20 through apertures 23, space 19 and the slot 12 against the arc. Oil may also be forced through a further slot 17 to produce an upward flow of oil through the clearance space between the member 14 and the contact 15. An arcing electrode 10 may be provided.
Patent GB-107545-A (GB)
Title: Improvements in or relating to Carburetters for Internal Combustion Engines.
Inventor: HAWXHURST JOHN JAY
IPC: F02M17/14
Filed: 1916-06-24
Abstract: 107,545. Hawxhurst, J. J., and Nicolai, E. F. June 24, 1916. Spray carburettors. - The carburettor is of the kind in which a preliminary rich mixture obtained by the suction of air past a fuel nozzle 18 is subsequently diluted by a secondary air supply controlled by an air valve 32 dependent upon the engine suction and upon the pressure in a dash-pot chamber The annular dash-not chamber 35 is formed between the air valve 32 and the casing 3, and communicates with the suction duct and the atmosphere by restricted apertures 39, 40, so that a limited supply of air passes through the chamber. The aperture 40 may be controlled by a screw valve 43 and an inwardly opening check valve 42. The air valve 32 has a depending rim 36 opposite the air inlets 27, and closes upon an adjustable seating 23, 24. The valve 32 may carry a needle valve 37 controlling the fuel nozzle 18, and the primary air-supply passage 7 may communciate with the atmosphere or with a source of heated air. Specification 107,618 is referred to.
Patent GB-1346151-A (GB)
Title: Device for fishing from a well a section of flexible drilling  pipe
IPC: E21B31/20
Filed: 1972-01-17
Abstract: 1346151 Boring earth &c INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 17 Jan 1972 [19 Jan 1971] 2177/72 Heading E1F [Also in Division F2] A fishing tool has a body 8 which is lowered into a section of flexible drill pipe in a well, and pins 11 in the body are urged outwardly of the body to penetrate the wall of the pipe. The tool may have more than one body. The body may have. hydraulic jets which perform a preliminary perforation of the pipe, the tool being raised or lowered so that the pins may be urged into the perforations. The drill pipe has a helical winding of metal strip 1 between sealing sheaths 2, 3 and armouring layers 4-7 of round wire.  (For Figure see next page)
Patent GB-450850-A (GB)
Title: Improvements in display stands
IPC: A47F5/06
Filed: 1935-01-23
Abstract: 450,850. Display racks. CLAYFIELD, A., c/o Metals, Ltd., Andover Street, Birmingham. Jan. 23, 1935, No. 2188. [Class 52 (v)] A display rack comprises a number of bars 2, Fig. 1, detachably pivoted together to form an angularly adjustable closed or partially closed figure, which is secured to a supporting pillar 1 at upper and lower pivoting points 3 and may be slidably secured to the pillar 1 at one or. more points 3 by means of a detachable sliding sleeve provided with clamping means. The bars 2 may be secured at their pivoting points by pin and nut connections 5, 7, Figs. 3 and 5, which are provided with bosses 4 for carrying beads or similar articles or with members 13 adapted to support shoes. The bars 2 can be detached and re-assembled to form figures of various shapes.
Patent GB-620628-A (GB)
Title: Method of working sheet metal
IPC: B21D1/02
Filed: 1947-01-24
Abstract: 620,628. Altering physical structure. BUDD CO. Jan. 24, 1947, No. 2214. Convention date, Jan. 25, 1946. [Class 83 (iv)] Angular bending.-To prevent the formation of stretcher strains in sheets subjected to intensive cold working by breaker roll and roller leveller, the sheet is subjected to gentle back- and-forth bending prior to passing to the breaker roll. Before passing to a breaker roll 12 and roller leveller 14 the sheet is bent by a reversed roller leveller 10 in which the curvature of the rolls gradually increases up to the breaker roll. In order to allow of the initial movement of the roll 12, the rolls 10 are rotated through ratchet gearing from an electromotor. Specfications 240,256 and 252,738, [both in Class 83 (iv)], are referred to.
Patent GB-382488-A (GB)
Title: Fastening for bracelets adjustable in size
IPC: A44C5/22
Filed: 1932-01-25
Abstract: 382,488. Bracelets; fastenings. ROGERS, F. H., 181, Queen Victoria Street, London.-(Rodi & Wienenberger Akt.-Ges. f³r Bijouterie & Kettenfabrikation ; 58, Bleichstrasse, Pforzheim, Germany. ) Jan. 25, 1932, No. 2249. [Class 43.] In fastenings for bracelets adjustable in size, a slide movable under friction on one end f of the bracelet is provided with fastening means to secure to it the other end p of the bracelet in any adjusted position. The slide comprises a bottom plate a having side walls b wherein a cover-plate e is loosely mounted. The bracelet end p is adapted to be passed through an eye q on the end f and carries an end-piece r having an aperture s<1> and lateral pins i adapted to engage a press pin g mounted on the coverplate e and slots in the side walls respectively. A lever plate m, n is pivotally mounted on the side walls and is formed with an aperture s adapted to engage the press pin g and retain the end-piece r thereon. The rear portion m of the lever plate at the same time presses on the cover-plate so as to clamp the slide in position on the bracelet.
Patent GB-1249722-A (GB)
Title: Line scanning system
Inventor: LOVE CHARLES EUGENE
IPC: G01S17/89
Filed: 1969-01-14
Abstract: 1,249,722. Airborne mapping system. HUGHES AIRCRAFT CO. 14 Jan., 1969, No. 2273/69. Heading H4F. [Also in Divisions G2-G3] Specification describes an airborne, ground scanning and film recording assembly wherein a laser beam 16 Fig. 2 scans a ground line 55 Fig. 1 (not shown) perpendicular to the aircraft's velocity vector (51 the reflected laser light 21 is collected by a very high aperture all spherical surfaced catadioptic system 22, the collected light is conveyed to an image disector tube 24 by a cross-section changing light fibre bundle 23 and the output of the image disector tube 24 is used to intensity modulate the linear sweep of a cathode ray tube 31 having its display focused on a moving film 35 whereby an image of the ground is formed. The oscillatory movement of the mirror 14 causing the laser beam scan, the scan of the image disector tube and the scan of the cathode ray tube 31 are synchronised and varied in proportion to the ratio V/H, where V is the aircraft's velocity and H is its height. The speed of the film is also varied as V/H. The optical system 22, Fig. 3a, 3b comprises a beam diameter. defining stop 207 at the centre of curvature of spherical lens 201 and mirror 202. A strip portion of the outer (upper) surface of lens 201 is mirrored at 203 to focus and reflect the light from mirror 202 onto the wedge end of light fibre bundle 23. As shown in Fig. 6, the bundle 23 converts the linear movement of the reflected light to circular movement at its output end 211, abutting the photo-cathode face of an image director tube 24. The scanning signals applied to the tube 24 cause the electrons emitted by its photo-cathode to all enter a photo- - multiplier section whereby an amplified video signal 26 is produced for application to the cathode ray tube.
Patent GB-555246-A (GB)
Title: Vehicle suitable for use as a road or land roller and/or for the transport of material
IPC: A01B29/06
Filed: 1942-02-26
Abstract: 555,246. Road rollers. HENDERSON W. M. Feb. 26, 1942, No. 2528. [Class (i)] A road roller encloses a container 10 withdrawable laterally and tipped by rotation of the roller. To permit withdrawal one spoke 3<SP>1</SP> of the roller is pivoted to the hub ; after the release of a catch 7 the spoke may be lifted to a horizontal position and fixed to an extension of the spindle 5. A spindle 11 carried by the spoke is thus brought into alignment with the spindle 8 supporting the container which may then be drawn clear of the roller. The roller frame may be fitted with an internal combustion engine driving the roller through friction gear described in Specification 555,245, [Group XXIV], and with an ordinary container for transporting materials.
Patent GB-473396-A (GB)
Title: Improvements in means for preventing radio interference from electric motors and thelike
IPC: H02K11/02
Filed: 1937-01-28
Abstract: 473,396. Protective arrangements. GENERAL ELECTRIC CO., Ltd., and BLIGH, N. R. Jan. 28, 1937, No. 2537. [Class 38 (iv)] In a radio interference suppressing device for electric motors and other apparatus in which the apparatus is completely enclosed by a conducting shield connected to one lead of the supply, a condenser is connected between the supply leads and an outer case completely insulated from the shield encloses the arrangement preventing the operator from making contact with the shield. The shield may be constituted by the motor housing, the outer case may be of insulating material or of metal insulated from the shield, and the condenser may be arranged external to, but in close proximity to the shield.
Patent GB-1488659-A (GB)
Title: Gas and non-polar liquid purification
IPC: B01D53/14
Filed: 1974-01-18
Abstract: 1488659 H 2 S-removal; Stretford liquors BRITISH GAS CORP 15 Jan 1975 [16 Oct 1973 18 Jan 1974] 48084/73 and 02547/74 Heading ClA H 2 S is removed from gases or non-polar liquids by oxidation to elemental sulphur, by contacting the gas or liquid with an aqueous alkaline redox liquor containing (a) at least one water-soluble salt of an anthraquinone disulphonic acid, (b) at least one water-soluble compound of a metal, e.g. Fe, alkali metal or ammonium vanadates, which is capable of existing in at least two oxidation states, and (c) at least one water-soluble aromatic polyhydroxy compound. The redox liquor may also contain (d) a monohydric phenol. In the examples, Stretford liquors were used which contained NaHCO 3  and Na 2 CO 3 , and as component (a) the sodium salt of an anthraquinone disulphonic acid; as component (b) sodium metavanadate, as component (c) hydroquinone, and as component (d), phenol and ortho-, meta- and para-cresols. The solutions were used to remove H 2 S from "sour gases", using air to regenerate their oxidizing potential.
Patent GB-493812-A (GB)
Title: Improvements in and relating to means for protecting aeroplanes and other aircraft against aerial barrages
IPC: B64D7/00
Filed: 1938-01-27
Abstract: 493,812. Aerial barrages. TINSSONNIER, G., and SOC. ANON. DES ETABLISSEMENTS C. TESTUT. Jan. 27, 1938, No. 2600. [Class 9 (ii)] Aircraft are protected against aerial barrage cables by providing conducting strips 11, 14, 12, 15 along the leading edges of the craft which contact with the cables to close electric circuits through the firing mechanisms of guns 2, 3 mounted on the craft and discharging projectiles which destroy the cables. The source of current may be a dynamo 6 driven from the propelling engine and may be sufficiently powerful to fuse the cable. In place of conducting strips, deformable members may be provided to close the circuits through the guns.
Patent GB-310557-A (GB)
Title: Improvements in and relating to combination chair-bedsteads
IPC: A47C17/207
Filed: 1928-01-27
Abstract: 310,557. Vine, C. P. Jan. 27, 1928. Bedsteads convertible into seats.-In a chairbedstead, the members a, b are pivoted to the fixed framing c by. means of two pairs of plates d, e provided with holes d<1>, e<1> to receive pivots f projecting from the part c, the pivot holes of one pair of plates being in a different horizontal plane from those of the other pair of plates, to permit compact folding of the members a, b, upon the framing c.
Patent GB-469663-A (GB)
Title: Improvements in and relating to the stabilisation of nitrates of carbohydrates
IPC: C06B21/00
Filed: 1936-01-29
Abstract: Nitrates of carbohydrates, particularly nitrates of cellulose, are stabilized during manufacture by continuous extraction at ordinary temperatures with agents which exert a swelling but non-dissolving action and which are always in a fresh uncontaminated condition when applied to the nitrate material. The extraction may be carried out at raised temperature and pressure.  Swelling agents specified are methyl, ethyl, propyl, and butyl alcohol, and mixtures thereof, and mixtures of solvents and non-solvents such as acetone with water, gasoline or benzene. Substances causing instability such as adsorbed mineral acids, nitrates or nitrites of simpler carbohydrates, and mixed nitric and sulphuric esters of cellulose or other carbohydrates, are removed by the extraction process.  For highly nitrated cellulose the stabilizing agents are used as such or but slightly diluted. In the case of lower nitrates of cellulose, the reagents may require greater dilution.  The used extraction agent may be subjected to evaporation and the hot or warm condensate is used for further extraction.  The extraction vessel may be provided with a syphon for removing the used extraction liquid and leading it to an evaporation vessel, where the liquid may be neutralized and the extracted materials saponified and rendered non-volatile, by treatment with small quantities of alkali.  In an example, gun cotton is laid on the double floor of an extraction vessel and held down by sheets of perforated metal or ceramic discs.  Strong alcohol is prepared by evaporation from a flask containing alkali, condensed as warm alcohol and introduced preferably into the bottom end of the extraction vessel.  Syphoning into the evaporation vessel takes place after all the gun cotton is immersed in warm alcohol.  The alcohol in the extraction vessel may be maintained nearly at its boiling point by means of heating devices.  Carbonates of sodium, calcium, and magnesium may be used for neutralizing the extracted acids and acid esters.  Silica gel, alumina gel, and activated carbon may also be employed.  Collodion wool may be similarly treated with a hot condensate formed by evaporation of 45--60 per cent ethyl alcohol.